74ACT573MTR

Latches Overview

The STMicroelectronics 74ACT573MTR is an octal D-type transparent latch with three-state non-inverting outputs, fabricated using advanced sub-micron silicon gate C2MOS technology. It operates within a supply voltage range of 4.5V to 5.5V and features symmetrical output impedance with minimum drive currents of |IOH| = IOL = 24mA. The device provides high-speed performance with typical propagation delays of 5ns at VCC=5V and low power dissipation with maximum quiescent current of 4μA. Inputs are compatible with TTL levels (VIH min 2V, VIL max 0.8V), and the package is available in SOP-20 tape and reel format.

Latches Feature Summary

• Advanced CMOS construction for high speed and low power consumption
• Three-state outputs suitable for bus-driven applications
• TTL-compatible input logic levels for direct interfacing
• Symmetrical output impedance ensuring balanced signal transmission

Latches Applications

• Buffer registers and memory mapping
• I/O port expansion for microprocessor systems
• Bus-oriented driving and line termination

Latches Procurement Notes

Verify component authenticity through authorized distribution channels as this part number may be obsolete or superseded by newer revisions. Confirm that the specific ordering suffix matches the required SOP-20 tape and reel packaging configuration. Ensure compliance with RoHS directives and verify that the operating temperature range aligns with system thermal requirements before finalizing procurement orders.

Latches Selection Notes

Select this component when designing systems requiring octal latching with three-state control at standard 5V logic levels. The device is appropriate for applications needing direct interface with TTL components while maintaining CMOS noise immunity. Consider the 50Ω transmission line driving capability for high-speed digital signals where signal integrity is critical across the data bus architecture.

Latches Part Context

This component belongs to the 74ACT series of high-speed CMOS logic devices manufactured by STMicroelectronics. It serves as an octal latch variant within the broader 74xx family, offering functional compatibility with standard 74LS573 pinouts while providing superior switching speeds and lower power consumption characteristics inherent to the ACT logic family specifications.

Latches Replacement Considerations

Direct substitutes include SN74ACT573N from Texas Instruments and MC74ACT573DWG from onsemi. Verify pinout compatibility and electrical parameter alignment before substitution.